solera

Borrowed from Spanish solera.

solera (countable and uncountable, plural soleras)

1. (uncountable) A method of producing sherry in which small amounts of younger wines stored in an upper tier of casks are systematically blended with the more mature wine in the casks below
2. (countable) A large wine cask, on the bottom tier in this system, that contains the oldest wine

• AOLers, Laroes, Larose, Loeras, arsole, orales, roseal

suelo +‎ -era

solera f (plural soleras)

1. solera
2. vintage (wine)
3. (figurative) character, history

• “solera”, in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014